甲基隆是一种快速起作用的神经质原体,与MDMA相比,其目标外活性较小
Jennifer Warner-Schmidt1, Martin Stogniew1, Blake Mandell1
1Transcend Therapeutics, New York, NY, United States.
Frontiers in neuroscience
|February 23, 2024
概括
甲基隆在治疗创伤后应激障碍 (PTSD) 方面表现有前途,通过迅速影响大脑关键区域的神经可塑性. 这种化合物似乎比MDMA具有更少的非目标效应,这表明PTSD和其他神经精神疾病的治疗概况可能更安全.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 遗传学 是一个遗传学.
背景情况:
- 创伤后应激障碍 (PTSD) 是一种普遍存在的精神疾病,治疗选择有限.
- 目前用于创伤后应激障碍的药物疗法通常效果缓慢,并且对很大一部分患者无效.
- 甲基隆是创伤后应激障碍的新兴治疗候选药物,显示出前临床抗抑郁药和抗焦虑剂效果的前景.
研究的目的:
- 调查下游基因表达和信号通路受甲基隆影响,在与PTSD和重度抑郁症 (MDD) 相关的大脑区域.
- 为了确定甲基隆是否影响与神经可塑性相关的基因.
- 为了比较甲基隆对大脑的影响与MDMA,一种相关化合物在PTSD治疗中已证明有效.
主要方法:
- 进行了单胺结合,吸收和释放测试.
- 一个高通量屏幕评估了168个G蛋白结合受体 (GPCR) 的激素/对抗剂活性.
- RNA测序 (RNA-seq) 分析了用甲基隆或MDMA治疗的老鼠的杏仁体和额叶皮层中药物诱导的基因表达变化,研究结果通过免疫组织化学证实.
主要成果:
- 甲基隆作为单氨基胺吸收抑制剂和释放剂,没有观察到非目标GPCR效应,与与与5HT2A和5HT2C受体相互作用的MDMA不同.
- 在甲基隆治疗后,RNA-seq在杏仁体中发现了与髓相关基因的显著调节.
- 甲基隆在额叶皮层上调节了与神经可塑性相关的基因.
结论:
- 甲基隆作为一种快速起作用的神经质原体,影响PTSD和MDD的关键大脑基质.
- 与MDMA相比,甲基隆表现出更高的特异性和更少的非目标效应.
- 这些发现支持甲基隆在治疗创伤后应激障碍和潜在的其他神经精神疾病方面的潜在临床实用性.
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